I think your 6 hours of afternoon sun "should" work. It isn't ideal of course and you may want plan on a different site next year. We are heavily wooded here too so I have to allow for the shift in sun positioning relative to the trees as summer progresses. Post-equinox on the 22nd of June will you still get a good 6 hours? Maybe more? If not, some judicious pruning of the plants may help some.

Shift any overhead watering you may have to do to noon instead of early morning so they won't sit with wet leaves too long. Good luck ;).

Thanks dirtgirl,
I know this makes me sound pretty ignorant, but I have to ask. Okay....so after June 22, the sun is lower on the horizon, on the south side?? I forgot about that changing too! Also, thanks for the reminder to not water early, if they have to sit in the shade for a couple hours.
I might just move them. I'll just take a shovel and dig a good ball of dirt up with them and move them.
I can't believe I didn't even think of the sun! I've been so used to constant sun in all of the garden for so long. Thanks for your help.